20806665

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2683}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 37103616

約数和(自身を除く): 16296951

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 1551, 2585, 2683, 7755, 8049, 13415, 29513, 40245, 88539, 126101, 147565, 378303, 442695, 630505, 1387111, 1891515, 4161333, 6935555, 20806665]

約数ペア:

[(1, 20806665), (3, 6935555), (5, 4161333), (11, 1891515), (15, 1387111), (33, 630505), (47, 442695), (55, 378303), (141, 147565), (165, 126101), (235, 88539), (517, 40245), (705, 29513), (1551, 13415), (2585, 8049), (2683, 7755)]